This ring was inspired by one in a comic story by Dark Natasha: The Great Treasure of Anubis, re-created under permission. The comic where it appears is Anubis: Dark Desire, published by Radio Comix.
It took me ages to finally finish this, but I'm rather happy with the results.
The cheetah girl is 14k yellow gold, holding a 14k white gold ball. It weights 13.4 grams. Fits size 9 (U.S.).